Hello,
A discussion has been underrun on MediaWiki Bugzilla ( http://bugzilla.wikimedia.org/show_bug.cgi?id=12131) about the fact that different system messages follow different naming styles, not a single one. In the end, Brion suggested that we should use hyphens (-) as long as possible, and avoid underscords or spaces in the names of system messages.
I would like to ask all developers to follow this standard for all new system messages they define.
Any input in this regard is more than welcome on the Bugzilla page. Also, I would be happy to hear from you about your ideas on renaming the already created system messages to follow one single naming fashion.
Cordially,
Hojjat (aka Huji)
wikitech-l@lists.wikimedia.org